An alternative approach to #59627. The main issue is that serializer.normalizer.property isn't tagged with serializer.normalizer, which, to my understanding, was intentional. Since MimeMessageNormalizer depends on it, the same instance of PropertyNormalizer (with the default named converter) is used for every named serializer.

This PR checks the arguments of normalizers and registers a child definition for any argument that is an instance of NormalizerInterface and doesn't have the serializer.normalizer tag.

cc @ruudk